Two girls wearing sunglasses take selfies on Chang'an Avenue in Beijing, May 17, 2016. [Photo/VCG]

He has spent more than 34,000 yuan ($5,128) on eyewear in the past two years.

Eyewear makers and retailers have sensed a big opportunity in China. According to the China Optometric and Optical Association, China already boasts more than 60,000 eyewear stores.

Frederic Poux, CEO of Alain Afflelou Group, France's largest franchised eyewear group, said increasing disposable incomes of middle-class Chinese, and rising awareness of the importance of vision and sight, are likely to boost the Chinese eyewear market.